CNBC Daily Open: AI is carrying the weight of the U.S. market

The "everything store" might have secured its biggest customer yet.On Monday, Amazon announced that it had signed a $38 billion deal with OpenAI, offering the ChatGPT maker access to Amazon Web Services' infrastructure.On the one hand, the move isn't too surprising — a continuation of OpenAI's spending spree as it looks to secure resources to run its power-hungry artificial intelligence models.On the other, OpenAI's turn to Amazon shows that the firm is diversifying from its reliance on Microsoft, which had ...